HKT to London to IST to CT Time Converter
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Quick answers
Selected conversion
8:00 pm20:00 HKT (UTC+8), Nov 10, 2026 = 12:00 pm12:00 GMT (UTC+0), Nov 10, 2026 = 5:30 pm17:30 IST (UTC+5:30), Nov 10, 2026 = 6:00 am06:00 CT (UTC-6), Nov 10, 2026
HKT is 8 hours ahead of London. HKT is 2 hours and 30 minutes ahead of IST. HKT is 14 hours ahead of CT.
How the time difference changes
HKT to London
For most of the year, HKT is 7 hours ahead of London. From Oct 25, 2026 to Mar 28, 2027, and from Oct 31, 2027 to Mar 26, 2028, HKT is 8 hours ahead of London.
For most of the year, working hours of 9:00 am to 6:00 pm in HKT correspond to 2:00 am to 11:00 am in London. At other times of the year, working hours of 9:00 am to 6:00 pm in HKT correspond to 1:00 am to 10:00 am in London.For most of the year, working hours of 09:00 to 18:00 in HKT correspond to 02:00 to 11:00 in London. At other times of the year, working hours of 09:00 to 18:00 in HKT correspond to 01:00 to 10:00 in London.
HKT to IST
HKT is 2 hours and 30 minutes ahead of IST year-round.
Working hours of 9:00 am to 6:00 pm in HKT correspond to 6:30 am to 3:30 pm in IST.Working hours of 09:00 to 18:00 in HKT correspond to 06:30 to 15:30 in IST.
HKT to CT
For most of the year, HKT is 13 hours ahead of CT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, HKT is 14 hours ahead of CT.
For most of the year, working hours of 9:00 am to 6:00 pm in HKT correspond to 8:00 pm (previous day) to 5:00 am in CT. At other times of the year, working hours of 9:00 am to 6:00 pm in HKT correspond to 7:00 pm (previous day) to 4:00 am in CT.For most of the year, working hours of 09:00 to 18:00 in HKT correspond to 20:00 (previous day) to 05:00 in CT. At other times of the year, working hours of 09:00 to 18:00 in HKT correspond to 19:00 (previous day) to 04:00 in CT.
Compare HKT time with London, IST, and CT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Hong Kong Time is 8 hours ahead of GMT (Greenwich Mean Time). Hong Kong Time is 2 hours and 30 minutes ahead of India Standard Time. Hong Kong Time is 14 hours ahead of Central Time.
8:00 pm20:00 in HKT is 12:00 pm12:00 in London, United Kingdom and is 5:30 pm17:30 in IST and is 6:00 am06:00 in CT
HKT to London call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in HKT which corresponds to 9am-10am09:00-10:00 in London.
HKT to IST call time
Best time for a conference call or a meeting is between 11:30am-6pm11:30-18:00 in HKT which corresponds to 9am-3:30pm09:00-15:30 in IST.
HKT to CT call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in HKT which corresponds to 6pm-7pm18:00-19:00 in CT (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
8:00 pm20:00 Hong Kong Time (HKT). Offset UTC +8:00 hours
12:00 pm12:00 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
6:00 am06:00 Central Time (CT). Offset UTC -6:00 hours
8:00 pm20:00 HKT / 12:00 pm12:00 London, United Kingdom / 5:30 pm17:30 IST / 6:00 am06:00 CT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| HKT | London, United Kingdom | IST | CT |
|---|---|---|---|
| 4:00pm previous day | 9:30pm previous day | 10:00am previous day | |
| 5:00pm previous day | 10:30pm previous day | 11:00am previous day | |
| 6:00pm previous day | 11:30pm previous day | 12:00pm previous day | |
| 7:00pm previous day | 12:30am | 1:00pm previous day | |
| 8:00pm previous day | 1:30am | 2:00pm previous day | |
| 9:00pm previous day | 2:30am | 3:00pm previous day | |
| 10:00pm previous day | 3:30am | 4:00pm previous day | |
| 11:00pm previous day | 4:30am | 5:00pm previous day | |
| 12:00am | 5:30am | 6:00pm previous day | |
| 1:00am | 6:30am | 7:00pm previous day | |
| 2:00am | 7:30am | 8:00pm previous day | |
| 3:00am | 8:30am | 9:00pm previous day | |
| 4:00am | 9:30am | 10:00pm previous day | |
| 5:00am | 10:30am | 11:00pm previous day | |
| 6:00am | 11:30am | 12:00am | |
| 7:00am | 12:30pm | 1:00am | |
| 8:00am | 1:30pm | 2:00am | |
| 9:00am | 2:30pm | 3:00am | |
| 10:00am | 3:30pm | 4:00am | |
| 11:00am | 4:30pm | 5:00am | |
| 12:00pm | 5:30pm | 6:00am | |
| 1:00pm | 6:30pm | 7:00am | |
| 2:00pm | 7:30pm | 8:00am | |
| 3:00pm | 8:30pm | 9:00am | |
| 16:00 previous day | 21:30 previous day | 10:00 previous day | |
| 17:00 previous day | 22:30 previous day | 11:00 previous day | |
| 18:00 previous day | 23:30 previous day | 12:00 previous day | |
| 19:00 previous day | 00:30 | 13:00 previous day | |
| 20:00 previous day | 01:30 | 14:00 previous day | |
| 21:00 previous day | 02:30 | 15:00 previous day | |
| 22:00 previous day | 03:30 | 16:00 previous day | |
| 23:00 previous day | 04:30 | 17:00 previous day | |
| 00:00 | 05:30 | 18:00 previous day | |
| 01:00 | 06:30 | 19:00 previous day | |
| 02:00 | 07:30 | 20:00 previous day | |
| 03:00 | 08:30 | 21:00 previous day | |
| 04:00 | 09:30 | 22:00 previous day | |
| 05:00 | 10:30 | 23:00 previous day | |
| 06:00 | 11:30 | 00:00 | |
| 07:00 | 12:30 | 01:00 | |
| 08:00 | 13:30 | 02:00 | |
| 09:00 | 14:30 | 03:00 | |
| 10:00 | 15:30 | 04:00 | |
| 11:00 | 16:30 | 05:00 | |
| 12:00 | 17:30 | 06:00 | |
| 13:00 | 18:30 | 07:00 | |
| 14:00 | 19:30 | 08:00 | |
| 15:00 | 20:30 | 09:00 |
Hong Kong Time
Offset: HKT is 8 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Hong Kong
Principal Cities: The largest city in the HKT time zone is Hong Kong in Hong Kong, with about 7.396 million people.
Daylight Saving: Clocks in Hong Kong Time (HKT) do not change for daylight saving time, so HKT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
HKT representations, usage and related time zones
- +08 - basic short
- +0800 - basic
- +08:00 - extended
- +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
- Hotel - Military abbreviation for HKT
- H - short form of 'Hotel'
- Asia/Hong_Kong
- Hongkong
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time
London Time Zone and Facts
Time Zone
BST – British Summer Time, UTC+1 (daylight saving time)
London Facts
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
Current time in India: India time now
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
Central Time
Central Time (CT) is a general term used to describe the areas that observe either the Central Standard Time (CST) or Central Daylight Time (CDT) in the United States and Canada. CT is not static but switches between CDT and CST.
Territories observing the time zone are primarily in North and Central America. It runs through several Mexican and U.S. states, as well as several Canadian provinces and Central American countries.
Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States
Principal Cities: The largest city in the CT time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
Today all shaded areas are on CT.
CT representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
- Sierra - Military abbreviation for CT
- S - short form of 'Sierra'
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone